class com.greensock.easing.Quad {
	public static function easeIn (t:Number, b:Number, c:Number, d:Number):Number {
		return c*(t/=d)*t + b;
	}
	public static function easeOut (t:Number, b:Number, c:Number, d:Number):Number {
		return -c *(t/=d)*(t-2) + b;
	}
	public static function easeInOut (t:Number, b:Number, c:Number, d:Number):Number {
		if ((t/=d*0.5) < 1) return c*0.5*t*t + b;
		return -c*0.5 * ((--t)*(t-2) - 1) + b;
	}
}
